124 lines
3.8 KiB
C++
124 lines
3.8 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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bool RectanglePlacement::operator== (const RectanglePlacement& other) const noexcept
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{
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return flags == other.flags;
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}
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bool RectanglePlacement::operator!= (const RectanglePlacement& other) const noexcept
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{
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return flags != other.flags;
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}
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void RectanglePlacement::applyTo (double& x, double& y, double& w, double& h,
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const double dx, const double dy, const double dw, const double dh) const noexcept
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{
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if (w == 0.0 || h == 0.0)
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return;
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if ((flags & stretchToFit) != 0)
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{
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x = dx;
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y = dy;
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w = dw;
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h = dh;
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}
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else
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{
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double scale = (flags & fillDestination) != 0 ? jmax (dw / w, dh / h)
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: jmin (dw / w, dh / h);
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if ((flags & onlyReduceInSize) != 0)
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scale = jmin (scale, 1.0);
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if ((flags & onlyIncreaseInSize) != 0)
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scale = jmax (scale, 1.0);
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w *= scale;
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h *= scale;
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if ((flags & xLeft) != 0)
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x = dx;
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else if ((flags & xRight) != 0)
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x = dx + dw - w;
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else
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x = dx + (dw - w) * 0.5;
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if ((flags & yTop) != 0)
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y = dy;
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else if ((flags & yBottom) != 0)
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y = dy + dh - h;
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else
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y = dy + (dh - h) * 0.5;
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}
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}
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AffineTransform RectanglePlacement::getTransformToFit (const Rectangle<float>& source, const Rectangle<float>& destination) const noexcept
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{
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if (source.isEmpty())
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return AffineTransform();
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float newX = destination.getX();
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float newY = destination.getY();
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float scaleX = destination.getWidth() / source.getWidth();
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float scaleY = destination.getHeight() / source.getHeight();
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if ((flags & stretchToFit) == 0)
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{
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scaleX = (flags & fillDestination) != 0 ? jmax (scaleX, scaleY)
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: jmin (scaleX, scaleY);
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if ((flags & onlyReduceInSize) != 0)
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scaleX = jmin (scaleX, 1.0f);
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if ((flags & onlyIncreaseInSize) != 0)
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scaleX = jmax (scaleX, 1.0f);
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scaleY = scaleX;
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if ((flags & xRight) != 0)
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newX += destination.getWidth() - source.getWidth() * scaleX; // right
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else if ((flags & xLeft) == 0)
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newX += (destination.getWidth() - source.getWidth() * scaleX) / 2.0f; // centre
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if ((flags & yBottom) != 0)
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newY += destination.getHeight() - source.getHeight() * scaleX; // bottom
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else if ((flags & yTop) == 0)
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newY += (destination.getHeight() - source.getHeight() * scaleX) / 2.0f; // centre
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}
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return AffineTransform::translation (-source.getX(), -source.getY())
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.scaled (scaleX, scaleY)
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.translated (newX, newY);
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}
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} // namespace juce
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